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Nervous System

Nervous System

Deterministic governance lint for MCP server configurations, plus reference tooling for the 7 rules.

What each tool actually does

Tool

Does real work?

audit_mcp_config

Yes. Deterministic lint, zero dependencies, fully offline, never throws. Checks inline secrets in env, shell wrappers, unpinned packages, auto-install flags, broad filesystem scopes, non-TLS remote transports, unpinned docker tags. Returns findings with severities and a 0-100 score.

check_preflight

Yes, when configured. Reads protected_files_list from nervous-system.config.json or NERVOUS_SYSTEM_PROTECTED_LIST. With no list it says so rather than guessing. If the list is unreadable it FAILS CLOSED.

get_* (everything else)

No. They return text: the framework, templates, instructions. That is why they are named get_.

Related MCP server: dingdawg-governance

Install

npx mcp-nervous-system

Free local tool: audit_mcp_config

Pass your config as config (object) or config_json (string), e.g. the contents of claude_desktop_config.json. Returns findings with severities and a 0-100 score.

Hosted API (pay-per-call, x402, USDC on Base)

The write-capable toolset runs server-side and is not in this package.

  • POST https://api.100levelup.com/x402/audit-mcp - governance lint ($0.05 USDC)

  • GET https://api.100levelup.com/x402/verify-audit - audit-chain verification ($0.005 USDC)

Discovery: /openapi.json and /llms.txt.

2.0.0 breaking changes

  • emergency_kill_switch -> get_kill_switch_instructions. It never stopped anything.

  • verify_audit_chain -> get_audit_verification_instructions. It never verified a chain.

  • dispatch_to_llm -> get_dispatch_command. It never dispatched.

  • check_preflight no longer matches hardcoded filenames from the author's own server. It reads your list.

  • Hardcoded fleet counts and violation totals removed from get_origin_story. A number baked into a package is a fossil the moment it ships.

License

MIT

Install Server
A
license - permissive license
A
quality
A
maintenance

Maintenance

Maintainers
Response time
Release cycle
1Releases (12mo)
Commit activity

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